Developing receptacle for automatic photographic machines



May 13 1924.

H. H. WOLFE DEVELOPING RECEPIACLE FOR AUTOMATIC PHOTOG'HAPHIC MACHINESFiled Jan. 4, 1923 2 Sheets-Sheet 1 May 13 1924. 1,494,203

H. H. WOLFE DEVELOPING RECEPTACLE FOR AUTOMATIC PHOTOGRAPHIC MACHINESFiled Jan. 4, 1923 2 Sheets-Sheet 3 Patented May 13, 1924.

UNITED STATES PATENT OFFICE.

EABBY HUGH WOLFE, 11 13311, LONDON, ENGLAND, ASSIGNOB T0 NEST rm- ERICKBAILEY, OF LONDON, ENGLAND.

, DIV'ELOPING BECMAOLE FOB AUTOIATIC PHOTOGBAPEIG memes.

Application ma Januar 4, ma Serial Io. 010,014.

.To alliwlwm it may com-em:

Be it known that I, Hum! Huron WOLFE, a sub'ect of the Kin of GreatBritain, resi in 'at 26 rondesbury I Villas, Kilburn, 1n the county ofLondon England, have invented new and useful Improvements in Develo ingReceptacles for Automatic Photograp 'c' Machines, of which the followingis a specification.

The invention relates to a: developing receptacle which is used in anautomatic photographic machine and into which a sensitized support isdelivered and developed.

Such an automatic photo raphic machine is shown and described in t especifications of Wolils British Patent No. 18699, dated August 13th,1909, and Wolfls British Patent No. 6370, of 1912, dated- March 15th,

1911, under international convention, but in that machine there werefour developing receptacles. In the first of these receptacles aphotographic plate wasdeveloped and in the second the platewas fixed.The plate 2 was then transferred to a copyingapparatus where a card wasexposed to the influence of light passing through the negative. The cardthen entered the third receptacle in which it was toned and fixed andfinally 80 it entered the fourth receptacle where it was washed.

The object of the present invention is to provide an improved developingreceptacle in which a sensitized card which has been exposed to lightcoming through a lens may first be developed, then rinsed withacidulated water, then treated with potassium permanganate slightlyacid, then treated with sodium sulphite, again treated with a 40developer and simultaneously submitted to the action of electric light,which transforms the silver bromide remaining in the card into apositive, then washed with acetic acid, then fixed, then washed andfinally treated with formaldehyde.

The receptacle is as usual narrow in cross section to receive the cardin its frame and is closed at its lower end by a removable sto per whichwhen removed allows the card 5 to drop out of the receptacle to be driedand delivered.

According to the present invention the receptacle is provided at itssides near the u per part thereof with several inlets t rough which thevarious solutions or water may enter the receptacle. The receptacle salso provided with an overflow pi at its upper end and with an outlet atits lb wer end which is fitted with a valve. One side of the receptacleis provided with a transparent win ow and with a light tight funn'elcontaining a source of 1i ht.

As the means for admitting liquid to such a receptacle the means forallowing a card to enter and to leave such a receptacle and electricalmeans for performing various operations in regular order by means ofelectromagnets are well known and described in the Britishspecifications above referred to, it is not considered necessar to showand describe such apparatus in t 0 present specification. I

The invention is illustrated in the accompanylng drawings in whichFigure 1 is a front elevation of the receptacle and Figure 2 is a planof the same. Fi re 3 is a side elevation of the receptacle a so showingthe funnel. Figure 4 is a vertical section on the line 4-4 of Figure 1showing also the means for opening the lower end of the receptacle toallow a card to drop out of the same, the light tight funnel and thesource of light.

a is the body of the receptacle which has a flared u per end at a andopening a across its ower end. The opemn a is closed by a rubber cushionin the orm of a tube b carried by a lever operated by known means.

The front of the receptacle a has an opening a fitted liquid tight witha transparent sheet a. which may be made of glass or crystal. To thefront of the receptacle a is fixed a which is fitted the light tightfunnel d. The plate 0 has strengt ening ribs 6 and the socket c has lugsc by which the funnel d may be fastened to the receptacle 0. by screws0.

The upper part of the receptacle a is formed with several inlet tubes ee e through which different solutions and water pass into the receptacle(1 and some of these inlet tubes may be branched as indicated at 6Figure 1. The receptable a has also an overflow pi e f fitted to theupper part thereof.

The lower part of the receptacle 0. is fitted with an outlet 9 the openend of which is closed by a soft valve k, such asrubber, carried by rodit sliding through fixed supplate 0 having a socket into portion of thecard which has been exposed port a. The rod k carries a coiled spring iit in compression located between the fire support a" and the valve kwhlch 'sprmg closes the valvek against the open end 0 ti outlet 9. Theend of the re It carnes an armature it which is attracted by theelectroma net 9' when it is desired to allow the liqui or part thereofto escape from the-receptacle a.

An electric lamp in is located within the funnel d and is renderedincandescent at the desired times. 7

A card I and its carrier 1 are indicated diagrammatically in positionwithin the receptacle a by means ofbroken lines. The interior of thereceptacle (1 may have an enlargement at a to allow suflicient space toensure that the liquid shall flow over that to light. The remainder ofthe card, which me. be used as a post card, is left blank.

at I claim as my invention is 1. An improved developing receptacle foruse in producin positive photographs, comprising a body aving an opentop and bottom and an opening in theside, means for closing the 0 onbottom, a plurality of inlets for liqui s at the uppfr end of the body,an outlet for li uids at t e lower end there-' of, means for c osing theoutlet for liquids, a transparent sheet of material closing the sideopening liquid'tight, and a source of light 0 posite to .saidtransparent sheet, substantia y'as set forth.

2. An improved developing receptacle for use in producing positivephotographs, comprising a body aving an open top and bottom and anopening in one side, means for closing the open bottom, a plurality ofinlets for liquids at the -u per end of the body, an overflow pipe attaced to the upper art of the body, an outlet for liquids at the ower endthereof, means for closing the outlet for liquids, a transparent sheetof material closing the side opening liquid tight, and a source of light0 posite to said trans arent sheet, substantial y as set forth- 3.improved developing receptacle for use in produc' positive photographs,comprising a body aving an open top and bottom and an opening-in oneside, means for closing the open bottom, a plurality of inlets forliquids at the upper end of the body, an overflow pipe attached to theupper part of the body, an outlet for liquids at the lower end thereof,means for closing the outlet for li uids, a transparent sheet ofmaterial closing the side opening liquid tight, a funnel carried by thebody, and a; V

- lets for liqui source of light located within the funnel,substantiallyas setforth.-

4.- Animproved developing receptacle for use in producing positivephotographs, comprising a body havingan open top and bottom and anopening in .one side, means for closing the 0 en bottom, a pluralityofinlets for liqui s at the uppler end of thebody, 1

an outlet for liquids at t e lower end thereof, a valve closm the saidoutlet, a rod bywhich the valve 1s carried,a fixed support in which therod slides, an armature on said rod, a spring in compression on said rodbetween t electromagnet to attract the said armature,

a transparent sheet of material closing the said opening liquid tight,and a source of light opposite to said transparent sheet, substantia lyas set forth.

- 5. An improved developing receptacle for use in producing positivephotographs, comprising a body having an open top and bete fixed supportand the valve, an, l

tom and an opening in one side, means for 7 closing the open bottom, aplurality of ins at the upper end of the body, an outlet for li uids atthe lower end thereof, means for c osing the outlet for liquids,

a transparent sheet of material closing the an outlet for liquids at thelower end of the body, a plurality of inlets for liquids at theupper'end of the body, an outlet for liquids at the lower end thereof, avalve closing the said outlet, a red by which the valve is carried, afixed support in which the rod slides, an armature on said rod, a springin compression on said rod between the fixed support and the valve, anelectromagnet to attract the said armature, a transparent sheet ofmaterial closing the side opening liquid tight, and a source of lightopposite .to said transparent sheet, substantially as set forth.

In'witness whereof I have hereunto set my hand in presence of twowitnesses.

. HARRY HUGH WOLFE.

Witnesses: 4

CLAUDE K. Mints, H'Anom S. Mum's.

